25 Jun
2002
25 Jun
'02
9:25 a.m.
On Tue, 25 Jun 2002 cctalk-request(a)classiccmp.org wrote:
From: ard(a)p850ug1.demon.co.uk (Tony Duell)
Subject: Re: final brainteaser for the day
To: cctalk(a)classiccmp.org
Date: Tue, 25 Jun 2002 01:37:29 +0100 (BST)
Reply-To: cctalk(a)classiccmp.org
[PDP11]
Ho hum... On MAGICA::DU3:[FORTH] perhaps? :-)
Looking at FORTH.MAC, the header says:
.TITLE F.I.G.
; ****************************************************************
;
; PDP-11 FORTH INTRODUCTION PDP-11 FORTH
;
; ****************************************************************
;
;
;
; PDP-11 FORTH RT-11, RSX-11M, AND STAND-ALONE JANUARY 1980
Oh, you can also pick it up at
ftp://ftp.update.uu.se/pub/pdp11/rsx/lang/forth
Johnny
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Forth! There's a bootable forth around?
That'd be fantastic...
There _was_...
FIG Forth was available for the PDP11 at one time, and at least one
varient included a small bootstrap which pulled the Forth kernel, etc
into memory. Disk access was then via the standard 1K 'screens'.
I think the only disk it supported (both for booting and for
reading/writing screens) was the RX01 (and maybe later the RX02). It
would be possible to modify the disk I/O code to handle other devices, I
guess.
There was also a version that ran under RT11 and used an RT11 file as a
'virtual disk' to store the screens. This is the only version I've ever
seen, and not having an RT11 license I can't run it.
If anyone knows the whereabouts of the standalone version I am
interested. I am pretty sure it was Public Domain (most FIG Forths are).